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Your finger joints are the most frequently used joints in the body. Learn about their anatomy, function, conditions, and treatment.
There are four joints in each finger, totaling 20 joints in each hand! The small, ringer, middle and index fingers all have the same four joints: Distal Interphalangeal Joint (DIP): The DIP joint is located at the tip of the finger, just before the finger nail starts.
Finger Anatomy: Joint. The finger joints allow the performing of various movements with precision and accuracy. These joints are necessary for bending, straightening, twisting, and grasping objects. Metacarpophalangeal (MCP) Joint
Overview. These muscles work together to help you move your your hand and fingers. What are the hand and wrist? Your hand and wrist are complex parts of your body that let you touch and control objects. Advertisement. Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission.
The metacarpophalangeal joints (MCP) are a collection of condyloid joints that connect the metacarpus, or palm of the hand, to the fingers. There are five separate metacarpophalangeal joints that connect each metacarpal bone to the corresponding proximal phalanx of each finger.
The interphalangeal joints of the hand are synovial hinge joints that span between the proximal, middle, and distal phalanges of the hand. In digits 2-5 these joints can be further classified based on which bones are involved.
The three phalanges in each finger are separated by two joints, called interphalangeal joints (IP joints). The one closest to the MCP joint (knuckle) is called the proximal IP joint (PIP joint). The joint near the end of the finger is called the distal IP joint (DIP joint).
The MP joint is where the hand bone, called the metacarpal, meets the finger bones, called the phalanges. A single finger bone is called a phalanx. MP joints are important for both power grip and pinch activities; they are where the fingers move in relation to the hand.
The proximal interphalangeal (PIP) joints of the fingers are extremely important for gripping things with hands, more specifically, what is called the ‘power’ grip. Being a hinge joint, the joint’s articular surface and soft tissue do not permit any lateral movement.
The finger joints are incredible. They are effective and precise, mobile yet stable. This chapter presents an anatomical atlas to help the reader understand the detailed anatomy, kinematics, blood supply, and innervation of all the finger joints from the DIP to the CMC.